Billy had 123 beads more than Warren at first. After Billy had given away 189 of his beads to Ivan, Warren had thrice as many beads as Billy. Find the number of beads Billy had at first.
| |
Billy |
Warren |
Comparing between
Billy and Warren |
123 more |
|
| Before |
1 u + 189 |
3 u |
| Change |
- 189 |
|
| After |
1 u |
3 u |
Billy had 123 beads more than Warren at first.
If 123 more marbles is given to Warren at first, both will have the same number of marbles.
3 u + 123 = 1 u + 189
3 u - 1 u = 189 - 123
2 u = 66
1 u = 66 ÷ 2 = 33
Number of beads that Billy has at first
= 1 u + 189
= 33 + 189
= 222
Answer(s): 222
